Carburetor



2 Sheets Sheet l.

LNe Model.)

E. J. FROST. GARBURETOR.

WITNESSES.

5M-, /fJ//W N. PETERS. Phummhugmphcf, vla-Mum". ac.

2 Sheets Sheet 2.

(No Model.)

E. J. FROST.

CARBURETOR.

N0. 312,836. Patented Feb. 24, 1885.

f G. A` J e..

INVENTOR..

WITNESSES.

N. PETERS. Plwlwmhbgmpher. washingmn. D, C.

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EDVARD J. FROST, OF PHILADELPHIA, PENNSYLVANIA.

CARBURETOF?.

SPECIFICATION forming part of Letters Patent No. 312,836, dated February 24, 1885.

Application filed December 9, i884. (No model);

To @ZZ whom it may concern:

Be it known that I, EDWARD J. Faosr, of Philadelphia, inthe State of Pennsylvania, have invented certain new and useful Improvements in Garburetors, whereof the following is a specification, reference being had to the accompanying drawings.

The exterior shape of the apparatus is cylindrical, and in its normal position the axis is horizontal.

In the drawings, therefore, Figure l represents a vertical transverse section through the apparatus. Fig. 2 is a horizontal section on the plane w x oi' Fig. l. Fig. 3 is alongitudinal section on the line y y of Fig. 1-that is to say, it is a top View of the interior as it would appear were the upper half of the cylindrical shell taken off and the porous iilling of the carburetor removed; and Fig. 4 is a vertical longitudinal section through the center of the apparatus.

My invention is especially intended for use in carburetors to which air is supplied under a considerable degree of pressure-as, for instance, where the air is obtained from the airbrake apparatus ot' railroad-cars, or in other cases where a compact and strong device is needed7 and where it is desirable that there should be no free liquid within the carburetor.

In Letters Patent of the United States No. 278,529, dated May 29, 1883, I have patented a form oi' carburetor designed to avoid such accumulation ot' liquid, and the present invention is to be considered in certain respects as an improvement on said device.

In the drawings, Arepresents the cylindrical outer shell of the carburetor, constructed preferably of stout sheet-copper, and having heads a c, of similar material, firmly secured thereto. rIhe interior of the cylinder is divided into a number of compartments by the series of parallel partitions B Ii, which extend` entirely across itvertically, but not longitudinally, the partitions I3 terminating at a short distance from the head a, while the alternate ones, B, terminate at a similar distance from the head a', as shown in Fig. 2. This arrange` ment obviously makes a continuous but zig zag passage-way from the space C on one side ofthe cylinder to the space C on the other.

Between the partitions B B', and at right angles thereto, are secured the strips d and d', the former being near the top ofthe partitions and the latter near the bottom. This divides the space between each pair of partitions into 5 5 a central passage of rectangular crosssection, the top and bottom spaces, ff', respectively inclosed between the curved periphery of the cylinder and the adjacent strips d or d. These strips d and d are perforated with holes e c', 6o respectively, to receivethe porous filling of the carburetor. This filling consists of strands of cotton wicking, D, drawn across from the plates d to the pla-tes d through the holes e and e, so as to partly iill the passageways between the partitions BB, leaving, however, room for theair-currentto circulate around the wicking. The strands D are held tightly in the holes c e', and the ends protrude into thespaces f and f. At the top ofthe cylinder, and between the 7o two partitions which are nearest the center, is a pipe, E, ruiming longitudinally through the cylinder. This' pipe E has at intervals laterally proj ecting branches G, curved to conform to the inner surface of the cylinder, and perforated with a number of small holes, as shown in Fig. 3. The upper ends of the partitions B and B' are pierced by openings at the proper intervalsto permit the passage of the branch pipes G, these openings, howlSo ever, being in those parts ofthe partitions which are between the shell A and strips d, so that the branch pipes do not communicate directly with the interior of the passages loetween the partitions. The' pipe E is provided 8 5 with a cock, L; and at the bottom ot' the cylinder, and preferably at one end, is a wastecock, E', leading from the lowest portion of the Acentral passage-way. An inlet-pipe, M, controlled by a cock, m, leads from the apparatus,for producing the air-blast into the space C; and an outlet-pipe, N, having a similar cock, a, leads from the opposite space.

The operation of the device is as follows: The cylinder being arranged with its axis as nearly as possible level, the pipe E is connectved with a reservoir of gasoline or other suitable volatile liquid, and the cock L being opened, the liquid i'lows into the branch pipes G, whence it issues through the small holes ICO into the adjacent ends of the wicking D. The holes e in the strips d are closed so tightly by i the strands of wicking that only such liquid as is drawn in by the capillary action of the wicking can pass, and thus, although the wicking becomes thoroughly saturated, no free liquid enters the passage-ways. As soon as saturation is complete the surplus liquid manifests itself at the bottom of the cylinder, and the waste-cock E being open, it drains off. The cocks m and n being then opened, the airblast enters and is forced through the entire system of passages, taking up the volatile liquid from the surfaces of the wicking, until finally it passes out, thoroughly charged with vapor, by the exit-pipe N, whence it may be conducted to any ordinary form of pressureregulator or directly to the burners.

I do not claim, broadly, in this patent the use of a mass of porous filling arranged in a zigzag passage; but I claim, in a carburetor having such av porous iilling, the following combinations of elements:

l. The combination of an inclosing-cylinder, a series of vertical partitions arranged longitudinally insaid cylinder in the alternating manner described, and a series of hori- 25 zontal plates arranged near the tops and bottoms of said partitions and extending the entire length of the cylinder, said plates being lprovided with holes to receive and sustain the porous filling, substantially as set forth. 3o

2. The combination of an inclosing-shell, a series of vertical partitions arranged lin thc alternating manner described, a series of horizontal plates arranged near the tops and bottoms of said partitions and extending the en- 3 5 tirelength of the shell, and a series of perforated feed-pipes which extend laterally across said partitions between the top plates and the inclosing-shell, substantially as set forth.

y E. J. FROST. Witnesses:

l). N. MARKS, BENJ. S. BURRIs. 

